Blake Shelton and Christina Aguilera together in song?  That just doesn't sound right.  You wouldn't think those two, very different voices would blend well.  You'd be wrong.  The duet on Aguilera's new album called 'Just a Fool,' blends Blake's country voice and Christina's pop sound together beautifully.  Take a listen as Christina's previews her new album Lotus for fans.  She speaks highly of her fellow coach on 'The Voice.'

Lotus hits stores November 13th but you can preview the CD at iTunes.